Requestsloginsession

* Changes to allow pylint to fully pass with score 10.00/10
* pylint passing badge
* Refactoring to create a number of new defs to cleanup `login()`

**Full Changelog**: https://github.com/damonjavert/requestsloginsession/compare/0.6.1...0.6.2

* Allow test_login to be optional
* Delete *.dat files upon failed login
* Ability to upload files
* Added typing
* f-strings
* Doc strings
* Basic documentation in README